MisFire

B

blackgove

Member
Location
Canada
2005 fx35 130 000km

When i'm at a stop light the engine jump a little like one cylinder is misfiring. If the i'm in N or P position the rpm goes up a bit and he d'ont do it only in D at idle around 700rpm.

I change sparkplug and air filter a month ago.

If a coilpack is defect the check engine light should be on but no check light no code store in the computer.


Any idea!?
 
Update: i send my fx to Infiniti dealer and after they see the problem, plug the truck for a full diagnostic and found nothing. So I try the cheapest thing rechange the brand new NGk iridium plug. It work! now it idle good and my mi/gal as improve allot.

So bad plug from the box
 
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